Spacing issue

README.md

@@ -26,7 +26,7 @@ content-MD5 are not present, then a blank string is used in their place. If the
 timestamp isn't present, a valid HTTP date is automatically added to the
 request. The canonical string is computed as follows:
 
-  `canonical_string = "#{http method},#{content-type},#{content-MD5},#{request URI},#{timestamp}"`
+    `canonical_string = "#{http method},#{content-type},#{content-MD5},#{request URI},#{timestamp}"`
 
 2. This string is then used to create the signature which is a Base64 encoded
 SHA1 HMAC, using the client's private secret key.